“Watch closely from now on—this is what you asked for.” Hong Chae-eun, the only daughter of the Oinky Gamjatang shop. Kwon Haegang, a national swimming team member and the son of the chairman of the Seun private school foundation. The only thing they have in common is that they attended the same school, in the same class. But after Haegang happens to discover her secret, a stubborn, relentless bad connection begins… Eight years after the worst breakup, they meet again. From ill-fated ties to coworkers—what comes next?